Polarized or threshold training: is there a superior training intensity distribution to improve VO₂max, endurance capacity and mitochondrial function? A study in Wistar Rat models.

ABSTRACT: Conflicting evidence exists regarding the superiority of Polarized Training (POL) vs other training intensity distribution models. Compare POL vs threshold (THR) training on V̇O₂max, endurance capacity (EC) and mitochondrial function. Fifteen male Wistar rats (336.1 ± 30.4 g) were divided in: POL (n = 5), THR (n = 5) or control (CON; n = 5) groups. V̇O₂max (indirect calorimetry) and EC (treadmill exhaustion test) were determined at baseline four and eight-weeks of training. POL consisted of 80% running volume at 60%V̇O₂max and 20% at 90%V̇O₂max while THR trained only at 75%V̇O₂max. Both protocols were isocaloric and performed 5d/week. All animals were housed in cages with access to running wheel to allow ad libitum activity. After trai

SUBMITTER: Oliveira P 

PROVIDER: S-EPMC12279575 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature